Land-pulverizer and clod-crusher.



vlllllllll PATENTED OCT. 3. 1905.

R. J. BUSWELL.

LAND PULVERIZER AND GLOD GRUSHER.

APPLIOATION FILED FEB. 16. 1905.

I// f I '1 ENTTED STATES PATENT @EETQE.

LAND-PULVERIZER AND CLOD-CRUSHER.

Specification of Letters Patent.

I-atented Oct. 3, 1905.

Original application filed December 3, 1904, Serial No. 235,360. Divided and this application filed February 16, 1905. Serial T aZZ whmn it may concern:

Be it known that 1, ROBERT J. BUswnLL, a citizen of the United States, residing at Wellington, in the county of Sumner and State of Kansas, have invented a new and useful Land- Pulverizer and (Hod-Crusher, of which the following is a specification.

This invention relates to land-pulverizers and clod-crushers, and it is a divison of the application for Letters Patent filed by myself on the 3d day of December, 1904, Serial No. 235,360.

The present invention has especial reference to land-crushing rollers provided with teeth or spikes for the purpose of penetrating into the soil, thereby rendering the operation of the device more efifective; and the principal object of the invention is to effect the cleansing of the rollers when the machine is in operation, so as to prevent the soil from adhering to the rollers between the teeth, and thus obstructing the operation.

Further objects of the invention are to improve and to simplify the construction and operation of this class of devices; and with these and other ends in view, which will appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a top plan view of a machine constructed in accordance with the principles of the invention. Fig. 2 is a longitudinal vertical sectional view of the same. Fig. 3 is a plan view showing a portion of a machine and illustrating a modification. Fig. 4 is a perspective detail View, partly in section, illustrating a modification in the construction of one of the roller-engaging brushes.

Corresponding parts in the several figures are indicated by like characters of reference.

The frame of the machine may be of any desired construction. In the accompanying drawings it has been shown as comprising a draft-frame and a vertically-movable rollercarrying frame, the latter comprising side members 1 1, each composed of a diamond truss, the upper and lower members of which are spaced apart at the ends thereof by journal-boxes 2 2 and intermediate of their ends by struts 3 3. The draft frame includes a wheel-supported axle 4, passing transversely between the struts 3 3, side members 5 5, connected with said axle, a front cross-bar 6, hounds 7, and a tongue 8. Means, including adjusting-levers 9, are also preferaby provided for the purpose of adjusting the roller-carrying frame vertically with relation to the draftframe; but it is to be distinctly understood that the frame structure may be greatly changed and modified within the scope of the invention and that, for instance, the rollers may be supported in a non-adjustable frame. The journal-boxes 2 2 at the front and rear ends of the frame afl'ord bearings for shafts 10, carrying cylindrical drums or rollers 11, which are provided with radially-extending spikes or teeth 12.

Suitably supported upon the truss-frame in rear of the respective rollers are brushes 15, each of which is preferably constructed of a pair of corrugated metal strips 16 16, having the wire bristles 17 secured between them by means of transverse clamping-bolts, rivets, or other suitable clamping means 18. The forward brush may be supported directly upon the lower truss member, as will be seen in Fig. 2, while the rearward brush is supported upon brackets 19, which may form rearward extensions of said lower truss member. It is to be understood, however, that the location of these brushes may be varied and that auxiliary supporting means for said brushes may be provided within the scope of the-invention.

Under the modification illustrated in Fig. 3, the rear spiked roller has been detached and a smooth roller (designated 20) has been substituted in its place. When said smooth roller is used, the rearmost brush may be also dispensed with.

Under some circumstances a rear roller may be also dispensed with, and again under some circumstances the frame of the machine may be constructed to carry more than two rollers, the general characteristics of the machine being, however, retained. Such modifications an angle-bar 21, one of the flanges of which abuts upon the rear side of the brush, thus preventing the wire bristles from working out between the corrugated strips or clamping-bars. This construction may be found preferable, inasmuch as the bristles, which are necessarily quite stiff, are otherwise apt to be pushed rearwardly between the corrugated clamping-strips until they do not offectively engage the rollers.

It will be understood that in the several forms of the invention the metallic clampingstrips, in which the bristles forming the brushes are mounted, are supported at their ends only and that they will consequently possess a degree of resiliency which is very effective in removing adhering dirt from the rollers and in rendering the brushes selfcleaning, a constant vibration being set up while the machine is in operation which is very effective in shaking the dirt loose and causing it to drop upon the ground.

The operation of this invention and its advantages will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed. hen the machine progresses over the held, the sharp teeth of the rollers will readily penetrate and crush the clods into fragments, which are completely pulverized under the weight of the rollers. The wire brushes, which are preferably made of such a length as to normally contact with the faces of the rollers, will admit of the passage of the teeth, but will positively prevent the dirt from adhering to or cakingupon the rollers, and thereby interfering with the successful operation of the machine. Adjustment of the brushes with relation to the faces of the rollers may be provided for. for instance, by forming slots, as 2'2, in the frame for the reception of the bolts 23, whereby the brushes are secured in position. This, however, is an obvious mechanical expedient.

This machine will be of lighter draft and more effective in its operation than a dragharrow of ordinary construction, and when a seat is provided, as shown at 24, the operator may ride without materially increasing the work of the team.

Having thus described the invention, What is claimed is 1. In a land-roller, a frame, a spiked roller supported for rotation in said frame, a pair of clamping-strips supported near their ends upon the frame in rear of said roller, and having intermediate unsupported portions, and roller-engaging bristles clamped between said strips.

2. In a land-roller, a roller-carrying frame having side pieces, a ground-engaging spiked roller supported for rotation between said side pieces, a pair of corrugated clampingstrips supported upon said side pieces in rear of the roller, and roller-engaging bristles clamped between said strips.

3. In a land-roller, a roller-carrying frame having side members, a ground-engaging spiked roller supported for rotation between said side members, clamping-strips supported upon said side members in rear of the roller, roller-engaging bristles clamped between said strips, and an angle-plate connected with one of the clamping-strips and having a flange engaging the rear edges of the clampingstrips to prevent rearward displacement of the bristles.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

ROBERT J. BUSVVELL.

Witnesses:

HATTIE STUBBs, C. B. LAMBE. 

